Base | Representation |
---|---|
bin | 101011111001010001… |
… | …000100101010111001 |
3 | 11111122200120011212111 |
4 | 223321101010222321 |
5 | 1233011202102241 |
6 | 33352455212321 |
7 | 3255652426063 |
oct | 537121045271 |
9 | 144580504774 |
10 | 47131675321 |
11 | 18a96669295 |
12 | 91743770a1 |
13 | 45a173c6a3 |
14 | 23d1802733 |
15 | 135cb60c81 |
hex | af9444ab9 |
47131675321 has 4 divisors (see below), whose sum is σ = 47132139600. Its totient is φ = 47131211044.
The previous prime is 47131675273. The next prime is 47131675363. The reversal of 47131675321 is 12357613174.
47131675321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 47131675321 - 29 = 47131674809 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (47131675391) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7231 + ... + 307108.
It is an arithmetic number, because the mean of its divisors is an integer number (11783034900).
Almost surely, 247131675321 is an apocalyptic number.
It is an amenable number.
47131675321 is a deficient number, since it is larger than the sum of its proper divisors (464279).
47131675321 is a wasteful number, since it uses less digits than its factorization.
47131675321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 464278.
The product of its digits is 105840, while the sum is 40.
The spelling of 47131675321 in words is "forty-seven billion, one hundred thirty-one million, six hundred seventy-five thousand, three hundred twenty-one".
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